Collapsible stoves



0 L 1962 E. HOCHHALTER ETAL 3,

COLLAPSIBLE STOVES Filed Feb. 24, 1961 3 Sheets-Sheet 1 EDWARD HOCHHALTER CLIFFORD E. ANDERSON INV EN T DR.

Oc 2, 2 E. HOCHHALTER ETAL 3,056,396

COLLAPSIBLE STOVES 3 Sheets-Sheet 2 Filed Feb. 24, 1961 EDWARD HOCHHALTER CLIFFORD E. ANDERSON IN VEN TOR.

Oct- 2, 2 E. HOCHHALTER ETAL 3,056,396

COLLAPSIBLE STOVES Filed Feb. 24, 1961 3 Sheets-Sheet 3 EDWARD HOCHHALTER CLIFFORD E. ANDERSON IN VEN TOR.

United States Patent Office 3,tl56,396 Patented Oct.. 2, 1962 3,056,396 CGLLAPSIBLE STOVES Edward l lochhalter, 1010 NE. 66th St, Vancouver, Wash,

and Cliiford E. Anderson, 3428 NE. Liberty St., Portland 11, Greg.

Filed Feb. 24, 1961, Ser. No. 91,526 1 Claim. c1. 126-9} This invention relates to cooking stoves and more particularly to one adapted, though not restrictively so, for use as a camp stove.

One of the principal objects of the invention is to provide a stove of the character described which is constructed of separate prefabricated parts which may be readily and easily assembled for use and disassembled and compactly collapsed after use for storage or transportation in a carrying case wherein the lid of the stove provides a closure for the carrying case.

Another object of the invention is the provision of a camp stove whose parts may be easily, economically and efliciently prefabricated with the use of conventional sheet metal cutting and bending tools and wherein the parts are assembled by frictional interengagement and without the use of hand tools, extraneous fastening elements such as screws, bolts or the like.

A further object of the invention is the attainment of economy of fuel, economy of construction, safety in use, and also convenience in permitting the camp fire to be left burning instead of complete extinguishment when such is desired.

The foregoing and other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof and in which:

FIGURE 1 is a top plan view of a stove made in accordance with our invention.

FIGURES 2 and 3 are front and rear elevational views respectively of FIGURE 1.

FIGURE 4 is an elevational view of the left side of FIGURE 2.

FIGURE 5 is a view similar to FIGURE 1 on an enlarged scale with fragments broken away and some parts in section for convenience of illustration.

FIGURES 6 and 7 are sectional elevational views taken respectively along the lines 66 and 7-7 of FIGURE 5.

FIGURE 8 is an exploded composite perspective view of the bottom and side walls of the stove in position for assembly and with fragments of one of the side walls and the bottom wall broken away.

FIGURE 9 is a perspective view of the rear wall also in position for assembly with the bottom and side walls.

FIGURE 10 is a perspective view of the front wall with a fragment broken away.

FIGURE 11 is a perspective view of a typical supporting leg.

FIGURE 12 is a top plan view of a carrying case for all of the stove components including the stove pipe and wherein the top wall or lid of the stove provides a closure for the carrying case.

With continuing reference to the drawings wherein like references of character designate like parts, and particularly to FIGURES l, 2, 3 and 4, reference numeral 1 indicates generally the bottom wall of the stove, 2 and 3 the front and rear walls respectively and 4 and 5 the side walls thereof.

As best illustrated in FIGURE 8 the bottom marginal edges of the side walls 4 and 5 are bent inwardly and upwardly as at 7 and 8 respectively for gravitational reception of downwardly turned side marginal edges 9 and 10 of the bottom wall 1.

The forward end of the bottom wall is bent downwardly as at 12 and upwardly as at 13 for similar reception of the bottom marginal edge 14 of the front wall 2 whose side edges are turned inwardly to provide vertical channels 15 and 16 and whose top edge is bent forwardly to provide a horizontal flange 17.

The rearward end of the bottom wall is similarly bent downwardly as at 18 and upwardly as at 19 to gravitationally receive the bottom edge 20 of the rear wall 3 whose side edges, as in the front wall, are bent inwardly to provide vertical channels 22 and 24. The top edge of the rear wall is bent rearwardly then forwardly to provide a forwardly opening channel 25. Spaced inwardly from the channels 15 and 16 and secured by spot welding to the inside of the front wall 2 are two angle members 28 and 29 paralleling the channels 15 and 16. Similarly the rear wall 3 is provided with angle members 30 and 31 spaced inwardly from and paralleling the channel members 22 and 24.

The front vertical edge of the side wall 4 is flanged outwardly as at 32, its rear edge as at 33 and the top thereof is bent outwardly then back on itself to provide an inwardly opening channel 35. Similarly the front and rear edges of the side wall 5 are flanged outwardly as at 36 and 37 (see also FIGURE 5) and its top edge is bent outwardly and inwardly to provide an inwardly opening channel 49.

From the foregoing it will be readily apparent that the main body of the stove may be quickly and. conveniently assembled without the use of any tools or fastening elements such as screws, bolts or the like, by first dropping the side flanges 9 and 10 of the bottom wall into engagement with the upturned flanges 7 and 8 of the side walls, then guiding the inwardly opening channels 22 and 24 of the rear wall downwardly over the outwardly turned rear flanges 33 and 37 of the side walls 4 and 5 until the bottom edge 20 of the rear wall positions itself between the rear flanges 18 and 19 of the bottom wall 1.

The front wall 2 is similarly attached to the front end of the bottom and side walls by engagement of the flanges 32 and 36 of the side walls with the channels 15 and 16 respectively of the front wall. When so assembled the side walls 4 and 5 are held against inward collapse by the angle members 28--29 on the inside of the front wall and the angle members 30 and 31 of the rear wall.

The top of the stove indicated generally at 45 comprises a rectangular plate preferably of heavier gauge metal than that of the parts just described and of slightly greater length than the distance between the front and rear walls 2 and 3 to provide a forwardly overhanging edge 46 to the under side of which a hand grip 47 is secured for convenience in sliding the plate into engagement with the channels and of the side walls 4 and 5 and into abutting engagement within the forwardly opening channel 25 across the top of the rear wall 3.

Secured by spot welding to both side walls 4 and 5 near the top front and top rear corners thereof are brackets 50 (see FIGURES 4, 5 and 8) each comprising a plate 51 bent back on itself as at 52 along both of its sides and thus adapted for removable securement to the top end of a typical leg member as illustrated in FIGURE 11.

Each leg member is made from sheet metal bent to provide parallel side walls 53 and 54 tapering downwardly from a pair of hook members 55 and upwardly therefrom to a substantially flat top portion 56 (see also FIGURE 6) which is adapted for insertion upwardly and through its respective bracket 50 as its hook members 55 are brought into engagement respectively with the side flanges 8 and 9 of the bottom wall 1. Such hooked engagement further stabilizes the rigid assembly of the bottom and side walls.

The front wall 2 (see FIG. 10) has an opening 60 formed therein provided with a door 61 secured by spot welding at one of its sides to one plate 62 of a hinge whose companion plate 63 is spot Welded to the front wall. The opposite side of the door is provided with a latch 64 pivotally attached as at 65 to the door and at its outer end adapted for engagement within a bracket 66 whose bottom end 67 is spot welded to the front wall 2. The door is provided with a draft opening 68 adapted to be opened or closed by a pair of plates 69 and 70 slidably maintained within a pair of parallel tracks 7172 also spot welded to the door.

The rear wall 3 (see FIGS. 4 and 9) is provided with an opening 76 surrounded by a rearwardly extending collar 77 to which is removably attached one end of an elbow 78 whose top end is adapted for internal engagement with the bottom end of a stove pipe 79 in the conventional manner.

For convenience in supporting pots, pans, dishes or other receptacles adjacent the stove to partake of the warmth thereof (see FIG. 5) we provide a shelf in the form of a rectangular plate 30 bent downwardly and inwardly as at 81 along both of its sides for engagement with outwardly extending flanges 83 formed along the top edge of supporting plates 85 and bent back on themselves along their inner edges as at 86 for slidable engagement with the flanges 32 and 33 of the front and rear wall 2 and 3.

The carrying case illustrated in FIGURE 12 is of boxlike formation having a bottom wall, end walls, and side walls 90 and 91 each flanged inwardly as at 92 and 93 respectively to provide inwardly opening channels to slidably receive the top plate or lid 45 of the stove which provides a closure for the carrying case. A partial top wall 94 is flanged forwardly as at 95 to form a channel which serves as a limit top for the closure plate. The side wall 90 is provided with any suitable type of hand grip 96 and the inside dimensions of the carrying case are such as to accommodate all of the stove components stacked flatwise therein including the stove pipe Sections into which the legs are inserted for further compactness.

While We have shown a particular form of embodiment of our invention, we are aware that many minor changes therein will readily suggest themselves to others skilled in the art without departing from the spirit and scope of the invention. Having thus described our invention what we claim as new and desire to protect by Letters Patent is:

A sectional stove comprising in combination a flat bottom wall, vertical side, front and rear walls, said bottom wall flanged downwardly along both of its sides and flanged downwardly and upwardly at its forward and rearward ends to provide upwardly opening flat-sided channels thereacross, said side walls bent inwardly and upwardly along their bottom edges to provide upwardly opening flatsided channels throughout their length to thereby gravitationally receive and engage with said side flanges of said bottom wall, the front and rear vertical edges of said side walls bent outwardly, the side edges of said front and rear walls bent inwardly and thereby slidable downwardly over and engaged with said outwardly turned edges of said side walls with the bottom edges of the front and rear walls resting and engaged within said channels across the front and rearward ends of said bottom wall whereby such interengagement of all said walls will by their own weight maintain them in a rigid boxlike structure, the top edges of said side walls bent outwardly and inwardly to provide inwardly opening flat-sided channels throughout their length, the top edge of said rear wall bent rearwardly then forwardly to provide a forwardly opening flat-sided channel, a top wall engaged within the channels in said side and rear walls, said rear wall having an opening therein, a collar surrounding said opening and extending outwardly therefrom and adapted for attachment to a stove pipe, said front wall having an opening therein, a Closure for said opening hingedly attached at one of its sides to said front wall and provided with a latch at its opposite side engageable with a keeper secured to said front wall, brackets secured to the front top and rear corners of said side walls on the exterior thereof, and supporting legs removably secured to said brackets, each of said brackets comprising a plate bent back on itself at both of its sides, each of said supporting legs comprising a sheet of metal bent to provide two parallel side walls each integrated with hook members adapted for hooked engagement with said bent sides on the bottom edge of said side walls.

References Cited in the file of this patent UNITED STATES PATENTS 677,176 Cochran June 25, 1901 1,222,325 Robertson et al Apr. 10, 1917 1,556,324 Goldsmith Oct. 6, 1925 1,790,476 Johnson Jan. 27, 1931 2,210,930 Heard Aug. 13, 1940 2,339,339 Kaser Jan. 18, 1944 2,511,515 Schmitt June 13, 1950 2,922,414 Brender Jan. 26, 1960 

